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6.5.2 Wiring procedure
• Remove the service panel. And connect the cable to the terminal in accordance with the
terminal name plate.
• Use a ring terminal to connect the electric cables to the power supply terminal board.
• Keep the earth cable longer than the other cables.
• After connecting the electric cable, secure them with a cable clamp.
• Connect the cable without applying excessive tension.
• Use the specified cable type and connect the cable securely.
Secure with a cable clamp as shown in the figure below.
Transmission terminal (M3)
Cable tie
(accessory)
Transmission cable
How to connect wiring to the terminal
Caution when wiring cable
(1) Use ring terminals with insulating sleeves as shown in the figure to connect to the
terminal block.
(2) Securely clamp the ring terminals to the cables using an appropriate tool so that
the cables do not come loose.
(3) Use the specified cables, connect them securely, and fasten them so that there is
no stress placed on the terminals.
(4) Use an appropriate screwdriver to tighten the terminal screws. Do not use a screw-
driver that is too small, otherwise, the screw heads may be damaged and prevent
the screws from being properly tightened.
(5) Do not tighten the terminal screws too much, otherwise, the screws may break.
(6) See the table below for the terminal screw tightening torques.
Strip 3/8 in
(10 mm)
Screw with
special washer
Cable
Ring terminal
Terminal block
Shielding the transmission cable
Connect both ends of the shielded
wire of the transmission cable to
the earth (ground) terminal of the
equipment or to the earth (ground)
screw near the terminal.
Be sure to use one side of a twisted
pair cable when using transmission
Use one side
cable with 2 sets of twisted pair
of the twisted
cables.
pair cable
Power supply terminal
Ring terminal (M5)
Earth
(ground)
cable
Conduit
Tightening torque
M3
4.4 to 5.3 lbf·in
screw
(0.5 to 0.6 N·m)
M5
17.7 to 26.5 lbf·in
screw
(2.0 to 3.0 N·m)
About 21-5/8 in (550 mm)
About 20-1/2 in (520 mm)
Cable tie (accessory)
Conduit (Power supply cable)
Ring terminal
Sleeve
Screw with
special washer
Ring terminal
Cable
Wind with insulation tape to prevent short circuit
Connect both ends of shielded
wire to earth (Ground).
Conduit installation
Please fix the conduit plate (accessory) as shown in the figure below.
Front connection
Lateral connection
lock nut
Cable (with conduit)
Ø 7/8 in (Ø 22.2 mm)
Ø 1-1/8 in (Ø 27.8 mm)
• Fix the conduit with the supporters as shown below.
Conduit (Power supply cable)
Outdoor unit
30 in
54 in
(756 mm)
(1,361 mm)
or less
or less
6.6. External input and external output
6.6.1 Terminal position
Outdoor unit PC board
Input 5
(CN135:
Orange)
Output 1
(CN136:
Black)
Output 2
(CN137:
Blue)
Do not bundle the cable for base pan heater with other cables.
Rear connection
Ø 7/8 in (Ø 22.2 mm)
Ø 1-1/8 in (Ø 27.8 mm)
Supporter
54 in
54 in
(1,361 mm)
(1,361 mm)
or less
or less
Input 4
(CN134: Red)
Input 3
(CN133: White)
Input 2
(CN132: Green)
Input 1
(CN131: Yellow)
CAUTION
En-10
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